Nov 16, 2016

(Medical Xpress)—A large team of researchers with members from several Europeans countries and the U.S. has found that mice fed a compound called spermidine lived longer than ordinary mice and also had better cardiovascular heath. In their paper published in the journal Nature Medicine, the researchers describe experiments they carried out with the compound and mice, what they found and why they believe the compound might provide benefits for humans.

Prior research has found that ingestion of spermidine—which was first discovered in semen samples, hence its name—led to longer lifespans in simple organisms such as fruit flies, yeast and roundworms. In this new study, the researchers sought to find out if the same would prove true for more complex creatures.

The researchers chose mice as their target, feeding some groups water with spermidine mixed in, while other groups received plain water. After observing the rodents over the course of their lifespans, the researchers discovered that those who had been given spermidine lived longer than those who had not—even if the supplement was not given to them until middle age. Closer examination of the rodents revealed that those given the supplement also had better heart function and lower blood pressure. They also found that rats fed a high-salt diet, which causes high blood pressure, had lower pressure readings when given spermidine.